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https://issues.apache.org/jira/browse/MAPREDUCE-1464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12830478#action_12830478
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Jitendra Nath Pandey commented on MAPREDUCE-1464:
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UserGroupInformation.createRemoteUser throws IllegalArgumentException if null
or empty user is passed to it. Therefore UGI with empty user cannot be
constructed.
I need to revisit HADOOP-6510 patch for the possibility of null returned by
getUser()
> In JobTokenIdentifier change method getUsername to getUser which returns UGI
> ----------------------------------------------------------------------------
>
> Key: MAPREDUCE-1464
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1464
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Reporter: Jitendra Nath Pandey
> Attachments: MR-1464.1.patch
>
>
> The TokenIdentifier interface has changed in HADOOP-6510. This jira tracks
> corresponding change in MR. The only change is that in JobTokenIdentifier
> getUsername method will be changed to getUser that will return ugi.
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